Overview
Despite its name, ringworm is a fungal infection — not a worm. It causes circular patches of hair loss with scaly, crusty borders. It's highly contagious between animals and to humans (zoonotic). Cats are more commonly affected and can be asymptomatic carriers, spreading the fungus without showing symptoms. Young, old, or immunocompromised animals are most susceptible.
Symptoms to Watch For
- Circular patches of hair loss with scaly borders
- Crusty, flaky skin in affected areas
- Broken or brittle hair shafts
- Mild itching (less intense than allergies)
- Darkened skin in healing areas
How Nutrition Helps
A strong immune system fights off fungal infections more effectively. Adequate protein, zinc, and vitamin E support immune defense. Well-nourished pets clear ringworm infections faster and are less likely to become chronic carriers. Omega-3 fatty acids support skin barrier repair after infection clears.
Prevention Tips
- Quarantine infected pets from other animals and immunocompromised people
- Disinfect bedding, brushes, and surfaces with diluted bleach
- Wash hands thoroughly after handling infected animals
- Treat all animals in the household, not just symptomatic ones
- Maintain a strong immune system through proper nutrition
Breeds at Higher Risk
Persian cats (most susceptible), Yorkshire Terriers, and Jack Russell Terriers. Any immunocompromised pet is at higher risk.